what is going on????

Vi

I started my "period" Feb. 25. It is now March 10 and starting a week ago it has gotten pretty bad and doesn't seem to want to stop. The cramping comes every now and then and hurt really bad when they do come. Pass big to little clots. Bleeding to where when I wipe it doesn't stop or slow. Idk what to do. But if in a few more days it doesn't slow down or stop I'm going to the doctor. What do y'all think is happening? pls help